Level up your running and racing experience with the Nathan Marathon Pak 3.0. Stay focused on your race while keeping essentials within easy reach. The large zippered pocket with divider keeps your smartphone secure and organized, while elastic loops and race bib attachments mean no more fumbling with safety pins or wondering where to stash your fuel. Wear it your way—around your waist or crossbody. The adjustable strap and low-profile buckle ensure a perfect fit for every runner or walker.